Saint John, IN 46373 ZIP Code Profile

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Saint John, IN

ZIP Code 46373: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Saint John, IN 46373

Not Acceptable, USPS
St John, IN 46373

  • ZIP Code Type: STANDARD
  • County: Lake County
  • Centroid: Latitude 41.452, Longitude -87.477
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 479
  • PO Box Addresses: 124
  • Residential Addresses: 5,908
    • Multi-Family Addresses: 19
    • Single Family Addresses: 5,889

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.

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Saint John, IN 46373 Data & Demographics (As of July 1, 2018)


Total Population 15,794
Population in Households 15,786
Population in Familes 14,347
Population in Group Qrtrs 8
Population Density1 1,520
Diversity Index2 32


Median Household Income $101,505
Average Household Income $115,323
Per Capita Income $40,483


Total Housing Units 5,582 (100%)
Owner Occupied HU 5,308 (95.1%)
Renter Occupied HU 235 ( 4.2%)
Vacant Housing Units 39 ( 0.7%)
Median Home Value $273,854
Average Home Value $295,573


Total Households 5,543
Average Household Size 2.85
Family Households 4,513
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.76% 1.54%
Households 1.94% 1.63%
Families 1.78% 1.48%
Median Household Income   1.42%
Per Capita Income   2.61%

Saint John, IN 46373 - Peer Comparisons by Rank and Percentile

The table below compares 46373 to the other 773 ZIP Codes in Indiana by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 156 80th
Population Density # 97 88th
Diversity Index # 149 81st
Median Household Income # 8 99th
Per Capita Income # 27 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE Indiana Census Data Comparison Tool.

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